当前位置:首页 > do > 正文

do和does的用法口诀是什么

  • do
  • 2024-06-18 19:15:44
  • 8749

用法 口诀 一般现在时,主语是第三人称单数 主语是“他、她、它”或单数名词,动词加“es” 一般现在时,主语不是第三人称单数 主语是“我、你、我们、你们”或复数名词,动词用原形
专业角度介绍:
"do" 和 "does" 是助动词,用来构成一般现在时的否定句和疑问句。 它们的用法取决于主语的人称和数。
口诀:
主语是第三人称单数(he, she, it, 单数名词),用 "does"。
主语不是第三人称单数(I, you, we, they, 复数名词),用 "do"。
举例:
肯定句:
He does his homework every day.
They do their homework every day.
否定句:
He does not (doesn't) do his homework every day.
They do not (don't) do their homework every day.
疑问句:
Does he do his homework every day?
Do they do their homework every day?
需要注意的是,"do" 和 "does" 在疑问句中位于句首,后面跟主语和动词原形。